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From left, Airman 1st Class Eric Johnson is directed by Tech. Sgt. Mardi Wilson, both 919th Special Operations Civil Engineer Squadron pavement and heavy construction equipment specialists, while driving the bulldozer, Jan. 11, 2019, Duke Field, Fla. The dirt pit near Duke Field, where this training is hosted, is used by Citizen Air Commandos for land navigation training as well as a number of other purposes. (U.S. Air Force photo by Senior Airman Dylan Gentile)